Hey
Normally I am a lurker ( in a good way ) but I stumbled over this listing in e bay and it appears to be a diy speaker, but one that I cannot seem to classify.
I was hoping that someone might have run across this and have some thoughts.
To me it appears like some form of bass reflex or possibly a MLTL .
The crossovers have some old style capacitors that may indicate age.
I have no connection to this listing and it appears way to expensive to even consider.
Any ideas?
vintage speakers | eBay
Normally I am a lurker ( in a good way ) but I stumbled over this listing in e bay and it appears to be a diy speaker, but one that I cannot seem to classify.
I was hoping that someone might have run across this and have some thoughts.
To me it appears like some form of bass reflex or possibly a MLTL .
The crossovers have some old style capacitors that may indicate age.
I have no connection to this listing and it appears way to expensive to even consider.
Any ideas?
vintage speakers | eBay
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They're almost certainly by Design Acoustics. The top speakers look like a sort of prototype or early version of the D-12.
The other clue is the design of the subwoofer, which bears some similarities to these DA bookshelf speakers:
Erm, obviously there's a distinct possibility they're just clones as well, given there are no markings on them. But if they're clones, they're clones of Design Acoustics speakers.
Another Design Acoustics model, again note the distinctive grille style, matches (somewhat) the bass units in the auction.
The tweeters in the auction listing also look like the sort of dome tweeters used extensively in Design Acoustics boxes, except they look visibly older than anything else I can find online. Could be an interesting piece of audio history there. Lots of interest in the listing despite the high ticket price..
The other clue is the design of the subwoofer, which bears some similarities to these DA bookshelf speakers:
Erm, obviously there's a distinct possibility they're just clones as well, given there are no markings on them. But if they're clones, they're clones of Design Acoustics speakers.
Another Design Acoustics model, again note the distinctive grille style, matches (somewhat) the bass units in the auction.
The tweeters in the auction listing also look like the sort of dome tweeters used extensively in Design Acoustics boxes, except they look visibly older than anything else I can find online. Could be an interesting piece of audio history there. Lots of interest in the listing despite the high ticket price..
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I apologize for the large font on the disclaimer. It came out larger then I anticipated.
What I find interesting is the long structure below the crossover. Some sort of long port?
What I find interesting is the long structure below the crossover. Some sort of long port?
Looks like a port. It's definitely part of the acoustic structure as it's well reinforced and filled with wadding.
Philips AD0161/T8
Cross-referenced with "Design acoustics" on Google brings up no matches, and the tweeter was released in 1970 as far as I can tell. The Design Acoustics D12 was released in 1973. Can't find any reference at all to DA using Philips tweeters in any design though.
The tweeters, midranges & XOs are all Philips parts available to diyers.
The tweeters are not rebated.
I have not run across anything like this, it may be a DIY speaker.
dave
The tweeters are not rebated.
I have not run across anything like this, it may be a DIY speaker.
dave
And they were mid to late 70's for those units. Generally Philips moved to textile tweeters (from poly-carbonate domes) after there and to textile 2" domes after this initial paper/card unit. The cross-over frequencies would usually be 500c/s and 4,500c/s. I think Dave is right about them being DIY. That dome is not usually recommend to run with only a 1st order network and that is what they have in the photos.
But as someone has said the domes are nice and the tweeters were good too after taking the face plates off which got rid of the sibilence (or however your spell it).
But as someone has said the domes are nice and the tweeters were good too after taking the face plates off which got rid of the sibilence (or however your spell it).
Those made the rounds on the various audio forums ten years or so ago and the conclusion then was that they were very well made DIYs. Sure'd be fun to give them a listen.
They're almost certainly not. Beyond the use of a dodecahedron enclosure (not a DA exclusive) there's nothing about those that bear the hallmarks of a George Sioles design.
Reference: own/have owned several DAs including the D-12, D-6 and PS-10 (the three models you cite) and started the DA Yahoo! group for the brand.
They're almost certainly not. Beyond the use of a dodecahedron enclosure (not a DA exclusive) there's nothing about those that bear the hallmarks of a George Sioles design.
Reference: own/have owned several DAs including the D-12, D-6 and PS-10 (the three models you cite) and started the DA Yahoo! group for the brand.
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